Tthis module is not maintained anymore, use this mpodule instead: https://github.com/kreativan/FrontEndTools

KreativanLess

ProcessWire less parser module. Using Wikimedia fork of a PHP port of the official LESS processor https://github.com/wikimedia/less.php.

Modules comes with few options:

• Auto browser cache buster based on a timestamp
• Minify CSS. Remove comments and whitespace to generate minimized CSS files.
• Development Mode. If enabled, less files will be parsed on every page load. Module is watching for changes and runs parser automatically, but if for any reason you need to force parsing, turn this option on. Just dont forget to turn it off in production, can affect page load speed a lot...

NOTE: Module is not autoload, but it is watching the files passed to the method for changes and runs parser automatically.

How yo use

Use $this->getCssFile($less_files, $less_string) method to parse your less files and get the CSS file URL.
Can parse single or multiple files in array. You can also pass additional less code as a string to the method...

$less_string = '@tm-primary-bg: blue;';

$less_file = 'templates/less/less_file.less';

$array = [
'templates/less/file-1.less',
'templates/less/file-2.less',
'templates/less/file-3.less',
];

// Get the module
$less = $modules->get("KreativanLess");

// Single file:        
<link rel="stylesheet" type="text/css" href="<?= $less->getCssFile($less_file); ?>">    

// Array of files:        
<link rel="stylesheet" type="text/css" href="<?= $less->getCssFile($array); ?>  

// Files + Additional less code...    
<link rel="stylesheet" type="text/css" href="<?= $less->getCssFile($array, $less_string); ?>